Question: How many seats are in prefectural assembly?
Paraphrase: In a prefectural assembly, how many seats are there?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q28362371 . ?ent wdt:P1342 ?obj } ORDER BY DESC(?obj)LIMIT 5 
Answer: Tokyo Metropolitan Assembly, Kanagawa Prefectural Assembly, Aichi Prefectural Assembly, Hokkaido Prefectural Assembly, Hokkaido Prefectural Assembly